body {
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    background: url("../../static/image/login/login_background.png") no-repeat;
    background-size: 1920px;
}

.box {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    /*padding: 40px;*/
    background: rgba(0, 0, 0, 0);
    box-sizing: border-box;
}

.box h2 {
    margin-bottom: 72px;
    padding: 0;
    text-align: center;
    font-size: 40px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    line-height: 52px;
    color: rgba(255, 255, 255, 1);
    opacity: 1;
}

.box .inputBox {
    position: relative;
}

.box .inputBox input {
    width: 100%;
    padding: 10px 0;
    font-size: 22px;
    color: #fff;
    letter-spacing: 1px;
    margin-bottom: 30px;
    border: none;
    border-bottom: 1px solid #fff;
    outline: none;
    background: transparent;
}

.box .inputBox label {
    position: absolute;
    top: 0;
    left: 0;
    letter-spacing: 1px;
    padding: 10px 0;
    font-size: 22px;
    color: rgba(255, 255, 255, 0.44);
    pointer-events: none;
    transition: .5s;
}

.box .inputBox input:focus ~ label,
.box .inputBox input:valid ~ label {
    top: -30px;
    left: 0;
    color: rgba(255, 255, 255, 0.44);
    font-size: 18px;
}

.box input[type="submit"] {
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    background: #03a9f4;
    padding: 10px 30px;
    cursor: pointer;
    border-radius: 5px;
}

.box input[type="image"]{
    position: absolute;
    left: 45%;
    margin-top:50px;
}
